TDA9875AH/V2,557 Overview
There is also an accompanying case included with this set. There is a recommendation that it should be mounted with a Surface Mount type mount. A 64-BQFP case has been embedded in it. This device has 2 channels. For your reference, here are some Demodulator functions. It can be used in Consumer Audio. There is a supply of votage within 4.75V~5.5V. -20°C~70°C TA is the temperature range for this device. A chip has 64 terminations. You can find similar parts by searching for the TDA9875A family. It is possible to sort parts based on their consumer IC type using CONSUMER CIRCUIT. It should not be possible to power this part with a voltage lower than 4.75V (Vsup). A maximum supply voltage (Vsup) is reached at 5.5V.
TDA9875AH/V2,557 Features
With 64-BQFP channels
operate temperature at the range of -20°C~70°C TA
consumer IC type: CONSUMER CIRCUIT

TDA9875AH/V2,557 Applications
There are a lot of NXP USA Inc.
TDA9875AH/V2,557 Audio Special Purpose applications.

AV/DVD Receiver, AV Amplifier
Car or Mobile Audio System
Digital Television
Musical Instruments
Recording Systems
High-End Audio/Sound Card for PC
Replacement of DIR1703
Other Applications Requiring S/PDIF Receiver
Audio Differential Line Drivers
Audio Mix Consoles

Mounting Type	Surface Mount
Package / Case	64-BQFP
Surface Mount	YES
Operating Temperature	-20°C~70°C TA
Packaging	Tray
Published	1999
Part Status	Obsolete
Moisture Sensitivity Level (MSL)	3 (168 Hours)
Number of Terminations	64
Applications	Consumer Audio
Voltage - Supply	4.75V~5.5V
Terminal Position	QUAD
Terminal Form	GULL WING
Terminal Pitch	0.8mm
Reach Compliance Code	unknown
Base Part Number	TDA9875A
JESD-30 Code	S-PQFP-G64
Function	Demodulator
Qualification Status	Not Qualified
Supply Voltage-Max (Vsup)	5.5V
Supply Voltage-Min (Vsup)	4.75V
Number of Channels	2
Interface	I2C
Consumer IC Type	CONSUMER CIRCUIT
Length	14mm
Height Seated (Max)	3mm
Width	14mm
RoHS Status	ROHS3 Compliant